Synthesis of highly stable metal-containing extra-large-pore molecular sieves.
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2016
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Abstract
The isomorphic substitution of two different metals (Mg and Co) within the framework of the ITQ-51 zeotype (IFO structure) using bulky aromatic proton sponges as organic structure-directing agents (OSDAs) has allowed the synthesis of different stable metal-containing extra-large-pore zeotypes with high pore accessibility and acidity. These metal-containing extra-large-pore zeolites, named MgITQ-51 and CoITQ-51, have been characterized by different techniques, such as powder X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectrometry, UV-Vis spectroscopy, temperature programmed desorption of ammonia and Fourier transform infrared spectroscopy, to study their physico-chemical properties. The characterization confirms the preferential insertion of Mg and Co atoms within the crystalline structure of the ITQ-51 zeotype, providing high Brønsted acidity, and allowing their use as efficient heterogeneous acid catalysts in industrially relevant reactions involving bulky organic molecules.
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martínez-franco2016synthesis
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| Authors | Martínez-Franco, Raquel;Paris, Cecilia;Moliner, Manuel;Corma, Avelino; |
| Journal | philosophical transactions series a, mathematical, physical, and engineering sciences |
| Year | 2016 |
| DOI |
10.1098/rsta.2015.0075
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| URL | |
| Keywords | Keywords not found |
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